Jefferson City, MT has a mild climate throughout the year. Winters are typically cold and snowy, with temperatures dropping below freezing on average from November to March. Summers are usually warm and dry with temperatures ranging from mild to hot depending on the time of year. Rainfall is generally sparse in summer, but increases in the autumn and early winter months while snowpack can accumulate during December and January. The area also experiences thunderstorms which can occur any time of year but most commonly during late spring and early summer months.
Jefferson City (zip 59638), Montana gets 11 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Jefferson City (zip 59638) averages 32 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 186 sunny days per year in Jefferson City (zip 59638). The US average is 205 sunny days.
Jefferson City (zip 59638) gets some kind of precipitation, on average, 88 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 85 degrees
Winter Low: the January low is 13
Rain: averages 11 inches of rain a year
Snow: averages 32 inches of snow a year